wl1251 has WLAN_IRQ pin for generating interrupts to host processor,
which is mandatory in SPI mode and optional in SDIO mode (which can
use SDIO interrupts instead). However TI recommends using deditated
IRQ line for SDIO too.

Add support for using dedicated interrupt line with SDIO, but also leave
ability to switch to SDIO interrupts in case it's needed.
Signed-off-by: NGrazvydas Ignotas <notasas@gmail.com>
Reviewed-by: NBob Copeland <me@bobcopeland.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

wl1251 is embedded chip that can be connected using SDIO bus, and is not
an actual SDIO card. For this reason there is a need to pass some board
specific data, like 'EEPROM is attached' flag or power control callback.

However currently there is no way to pass this data through SDIO subsystem,
so this patch registers dummy platform_device to allow that, until we
have a better solution to this.
Signed-off-by: NGrazvydas Ignotas <notasas@gmail.com>
Acked-by: NKalle Valo <kvalo@adurom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Some wl1251 hardware configurations (like in WG7210 module) have
EEPROM attached where NVS data is kept, which includes MAC address.

In such configurations, let's read default MAC address from EEPROM,
instead of using random one.
Signed-off-by: NGrazvydas Ignotas <notasas@gmail.com>
Acked-by: NKalle Valo <kvalo@adurom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

If EEPROM is used, NVS data is now loaded but ignored.
Stop loading it to avoid need of dummy NVS file for modules with EEPROM.
Signed-off-by: NGrazvydas Ignotas <notasas@gmail.com>
Acked-by: NKalle Valo <kvalo@adurom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch will add support for connection quality monitoring by configuring
rssi triggers to the firmware, and enabling the firmware rssi trigger
functionality.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Allow the wl1271 go to ELP mode also in idle. This will reduce current
consumption remarkably in idle mode (~12mA -> ~0.2mA)
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

mac80211 sends RTS threshold configuration request even if the wl1271 interface
state is WL1271_STATE_OFF. This leads to failures during pm tests.

This patch leaves the configuration function, if the interface is
going down.
Signed-off-by: NSaravanan Dhanabal <ext-saravanan.dhanabal@nokia.com>
Reviewed-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

mac80211 sends configuration requests even if the wl1271 interface
state is WL1271_STATE_OFF. This creates warnings from mac80211.

This patch leaves the configuration functions, if the interface is
going down.
Signed-off-by: NSaravanan Dhanabal <ext-saravanan.dhanabal@nokia.com>
Reviewed-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes some memory leaks occurring during driver init/de-init.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Better use the macro for consistency, the content is the same anyway.
Signed-off-by: NKalle Valo <kvalo@adurom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch modifies tx-queue flushing to correspond with tx-path - i.e.
also frames for which no ack was requested are forwarded to the mac80211
for disposal.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Remove ERROR print from psm-entry-fail scenario, instead use an INFO print.
Also, add INFO print to the beacon-loss scenario.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Increase the fixed listen-interval max value configured to the mac80211 on
driver init. This value will allow a larger value to be configured to the
AP, which means the AP will buffer our frames longer.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Configure meaningful rates to be used with the templates. For control frames,
use the determined basic rates (currently the lowest rate for the band) and
for data-frames (null-funcs) let the firmware use the current rate policy to
determine the rate.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Currently the mac80211 is not telling a hardware rate controlled driver a
rate to use for association frames etc. So to be safe, use the lowest rate
of each band for communication.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The firmware does not like the host configuring the keep-alive after it has
been once configured after a join-operation. Instead, it will complain about
invalid parameters, which do not break functionality, but do not look nice
in the syslog either.

This patch prevents the complaints by only configuring the keep-alive once
for an association, after the first time join is performed with the correct
bssid.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The command header was missing in the wl1271_cmd_disconnect structure.  It
was working fine by sheer luck, because the parameters are not critical and
because our wl1271_cmd_send() function was overwriting the rx_config_options
with the actual header.

This patch adds the header to the command structure.
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Our SPI driver is called "wl1271_spi" in the driver information structure.
Let's use the same for SDIO so that things are aligned.
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

After last transmission, the device goes to sleep earlier
than the configured dynamic power save timeout. If timeout
is set to 400ms, device enters into sleep mode at around
330ms since from last TX.

This patch removes the msleep(1), which causes the delay
after ELP wakeup. Replaced with udelay(10), the variation
is around 7-10ms.
Signed-off-by: NSaravanan Dhanabal <ext-saravanan.dhanabal@nokia.com>
Reviewed-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch will enable the hardware keep-alive mode, configure the required
template, configure keep-alive parameters, and re-order JOIN's and ACX_AID
in such a way that the keep-alive is activated.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Add support for keep-alive templates, which are indexed.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch configures the mac80211 to not perform connection monitoring
(periodic probe-requests) and instead rely on the hardware to do it.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

If PSM entry fails despite of retries, assume that the AP has been lost,
and indicate connection loss to the mac80211. This is much safer than
remaining in active mode.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Configure a probe-request template to the wl1271 when associated - the
wl1271 will use this to attempt to recover a connection when beacon loss
is detected.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The driver tx-queue flush operation leaks broadcast-frames. This leak occurs
if the driver is shut down while there are frames in TX buffers (such as in
a firmware crash scenario.) Fix the leak.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Change the driver to call ieee80211_beacon_loss function always when
BSS_LOST_EVENT is received. Reason for the change is that entering PSM
might fail before driver receives BSS_LOST_EVENT. In such case the
driver would disable PSM and the stack would not be notified about beacon
loss and connection loss detection would be delayed by tens of seconds.
Signed-off-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Configure the hardware beacon interval to whatever requested by the
mac80211.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Fix the driver to better reflect the ad-hoc related configuration from the
mac80211.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The wl1271 does not support disabling the connection monitor feature.
Perform the next best thing by increasing the beacon-loss threshold and
BSS_LOSE event timeout to the maximum values.

This is needed, because we really don't want any random probe-requests during
scanning or especially while in ad-hoc mode and not beaconing.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

The noise element in the ieee80211_rx_status struct has been deprecated in
commit "mac80211: deprecate RX status noise".  Remove the usage of this
element from wl1271_rx.c to avoid warnings.
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Wait for the DISCONNECT_EVENT_COMPLETE_ID event after sending a disconnect
command.
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Poll for join command completion instead of waiting blindly for 10 msecs.
There is a timeout of 100 msecs, if the command doesn't complete by then, we
return an error code.
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch removes the MAC address randomization from the driver. This removes
a nasty Nokia-OUI dependency from the driver.

With this patch, unless an address is explicitly configured to the driver
by the user, only a zero address will be configured, and the driver will be
unable to start.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

After the busy-words, if the firmware did not complete by the end of the
first (fixed) busy-word, a flip of the CS line is required to enable clocking
out the actual read data.

This patch changes the mechanism such that the CS line is flipped after each
busyword.

Also, the busy-word mechanism is finally enabled, and the number of fixed
busywords reduced to the minimum.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Fix a trivial memory leak in cmd_data_path.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

There were wrong format specifiers in wl1271_sdio.c in some debug
outputs. This has been causing warnings on some platforms.
Signed-off-by: NTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch configures the wl1271 chipset clock-request line to be
driver in open-drain mode instead of push-pull.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes a memory leak in the scan command handling code.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NKalle Valo <kalle.valo@iki.fi>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch fixes two memory leaks in the SPI initialization code.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NKalle Valo <kalle.valo@iki.fi>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Add reporting of the used TX rate to mac80211 in the tx_status.
Signed-off-by: NJuuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: NKalle Valo <kalle.valo@nokia.com>
Signed-off-by: NLuciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>